CVE-2026-47082CWE-863

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2

Medium · published July 16, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
21.4
In the wild
Unconfirmed
What it is

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. The vacation "fcc" feature skips the destination-mailbox ACL. A user whose vacation Sieve script used :fcc (to save a copy of the sent message) could deliver vacation auto-reply copies into any mailbox the script could name, regardless of whether the script owner had insert permissions on the destination mailbox.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00298 · 21.4th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-07-16T00:00Z
EPSS history
Timeline
  • 16 JUL 00:00Z
    An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2
    cvelistv5